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Move FindCursorView into its own file
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,17 @@ | ||
| // | ||
| // FindCursorView.h | ||
| // iTerm | ||
| // | ||
| // Created by George Nachman on 12/26/13. | ||
| // | ||
| // | ||
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| #import <Cocoa/Cocoa.h> | ||
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| @interface FindCursorView : NSView { | ||
| NSPoint cursor; | ||
| } | ||
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| @property (nonatomic, assign) NSPoint cursor; | ||
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| @end |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,52 @@ | ||
| // | ||
| // FindCursorView.m | ||
| // iTerm | ||
| // | ||
| // Created by George Nachman on 12/26/13. | ||
| // | ||
| // | ||
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| #import "FindCursorView.h" | ||
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| // When performing the "find cursor" action, a gray window is shown with a | ||
| // transparent "hole" around the cursor. This is the radius of that hole in | ||
| // pixels. | ||
| const double kFindCursorHoleRadius = 30; | ||
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| @implementation FindCursorView | ||
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| @synthesize cursor; | ||
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| - (void)drawRect:(NSRect)dirtyRect | ||
| { | ||
| const double initialAlpha = 0.7; | ||
| NSGradient *grad = [[NSGradient alloc] initWithStartingColor:[NSColor whiteColor] | ||
| endingColor:[NSColor blackColor]]; | ||
| NSPoint relativeCursorPosition = NSMakePoint(2 * (cursor.x / self.frame.size.width - 0.5), | ||
| 2 * (cursor.y / self.frame.size.height - 0.5)); | ||
| [grad drawInRect:NSMakeRect(0, 0, self.frame.size.width, self.frame.size.height) | ||
| relativeCenterPosition:relativeCursorPosition]; | ||
| [grad release]; | ||
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| double x = cursor.x; | ||
| double y = cursor.y; | ||
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| const double numSteps = 1; | ||
| const double stepSize = 1; | ||
| const double initialRadius = kFindCursorHoleRadius + numSteps * stepSize; | ||
| double a = initialAlpha; | ||
| for (double focusRadius = initialRadius; | ||
| a > 0 && focusRadius >= initialRadius - numSteps * stepSize; | ||
| focusRadius -= stepSize) { | ||
| [[NSGraphicsContext currentContext] setCompositingOperation:NSCompositeCopy]; | ||
| NSBezierPath *circle = [NSBezierPath bezierPathWithOvalInRect:NSMakeRect(x - focusRadius, | ||
| y - focusRadius, | ||
| focusRadius * 2, | ||
| focusRadius * 2)]; | ||
| a -= initialAlpha / numSteps; | ||
| a = MAX(0, a); | ||
| [[NSColor colorWithDeviceWhite:0.5 alpha:a] set]; | ||
| [circle fill]; | ||
| } | ||
| } | ||
| @end |
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